KR20170025809A - Hetero-cyclic compound and organic light emitting device using the same - Google Patents

Abstract

Provided is a heterocyclic compound which can significantly improve lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device. Also, provided is an organic light emitting device in which the heterocyclic compound is contained in an organic compound layer.

Description

HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME [0002]

The present invention relates to a heterocyclic compound and an organic light emitting device using the same.

An electroluminescent device is one type of self-luminous display device, and has advantages of wide viewing angle, excellent contrast, and high response speed.

The organic light emitting device has a structure in which an organic thin film is disposed between two electrodes. When a voltage is applied to the organic light emitting device having such a structure, electrons and holes injected from the two electrodes couple to each other in the organic thin film and form a pair, which then extinguishes and emits light. The organic thin film may be composed of a single layer or a multilayer, if necessary.

The material of the organic thin film may have a light emitting function as needed. For example, as the organic thin film material, a compound capable of forming a light emitting layer by itself may be used, or a compound capable of serving as a host or a dopant of a host-dopant light emitting layer may be used. In addition, as the material of the organic thin film, a compound capable of performing a role such as hole injection, hole transport, electron blocking, hole blocking, electron transport, electron injection, etc. may be used.

In order to improve the performance, life or efficiency of an organic light emitting device, development of materials for organic thin films is continuously required.

U.S. Patent No. 4,356,429

A compound having a chemical structure capable of satisfying the conditions required for a material usable in an organic light emitting device, for example, an appropriate energy level, electrochemical stability and thermal stability, The organic light-emitting device is required to be studied.

An embodiment of the present application provides a heterocyclic compound represented by the following formula (1): < EMI ID =

[Chemical Formula 1]

In Formula 1,

At least one of R1 to R7 is represented by - (L) p- (Y) q, and the remainder each independently represents hydrogen; heavy hydrogen; A halogen group; -CN; A substituted or unsubstituted C ₁ to C ₆₀ alkyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkenyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkynyl group; A substituted or unsubstituted C ₁ to C ₆₀ alkoxy group; A substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group; Substituted or unsubstituted C ₂ to C ₆₀ heterocycloalkyl group of; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; -SiRR'R "; -P (= O) RR '; and the C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ of Or an amine group substituted or unsubstituted with a heteroaryl group, or two or more groups adjacent to each other may be bonded to each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,

L is a direct bond; A substituted or unsubstituted C ₆ to C ₆₀ arylene group; Or a substituted or unsubstituted C ₂ to C ₆₀ heteroarylene group,

Y is hydrogen; heavy hydrogen; A halogen group; -CN; A substituted or unsubstituted C ₁ to C ₆₀ alkyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkenyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkynyl group; A substituted or unsubstituted C ₁ to C ₆₀ alkoxy group; A substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group; Substituted or unsubstituted C ₂ to C ₆₀ heterocycloalkyl group of; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; -SiRR'R "; -P (= O) RR '; and the C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ of A substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group,

p is from 0 to 10, q is from 1 to 10,

A substituted or unsubstituted C ₁ to C ₆₀ linear or branched alkyl group, a substituted or unsubstituted C ₃ to C ₆₀ linear or branched alkyl group, a substituted or unsubstituted C ₃ to C alkenyl group, for C ₆₀ monocyclic or polycyclic cycloalkyl group; or a substituted or unsubstituted C ₂ to C ₆₀ monocyclic or polycyclic heteroaryl group; a substituted or unsubstituted monocyclic ring of C ₆ to C ₆₀ aryl or polycyclic group.

Another embodiment of the present application is an organic light emitting device comprising a cathode, a cathode, and at least one organic layer provided between the anode and the cathode, wherein at least one of the organic layers is a heterocyclic compound Emitting layer.

The heterocyclic compound according to one embodiment of the present application can be used as an organic material layer material of an organic light emitting device. The heterocyclic compound can be used as a material for a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer in an organic light emitting device. In particular, the heterocyclic compound represented by Formula 1 can be used as an electron transporting layer, a hole transporting layer, or a material of a light emitting layer of an organic light emitting device. In addition, when the compound is used in an organic light emitting device represented by Formula 1, the driving voltage of the device can be lowered, the light efficiency can be improved, and the lifetime characteristics of the device can be improved by thermal stability of the compound.

FIGS. 1 to 3 schematically show a stacked structure of organic light emitting devices according to one embodiment of the present application.
4 shows the LTPL results measured at a wavelength of 357 nm of Compound 44. FIG.
Figure 5 shows the LC / MS results for compound 44.
6 shows LC / MS results of Comparative Compound 1. Fig.
Fig. 7 shows LC / MS results of Comparative Compound 2. Fig.
Fig. 8 shows LC / MS results of Comparative Compound 3. Fig.
FIG. 9 shows LC / MS results of Comparative Compound 5. FIG.
DESCRIPTION OF THE REFERENCE NUMERALS
100: substrate
200: anode
300: organic layer
301: Hole injection layer
302: hole transport layer
303: light emitting layer
304: hole blocking layer
305: electron transport layer
306: electron injection layer
400: cathode

The present application will be described in detail below.

The heterocyclic compound according to one embodiment of the present application is characterized by being represented by the above formula (1). More specifically, the heterocyclic compound represented by the formula (1) can be used as an organic material layer material of the organic light emitting device according to the structural features of the core structure and the substituent.

According to one embodiment of the present application, the formula (1) may be represented by the following formula (2).

(2)

In the above Chemical Formulas 2 to 9, R2 is represented by - (L) p- (Y) q

L, Y, p and q are the same as defined in the above formula (1).

In one embodiment of the present application, Y in Formula 1 is hydrogen; heavy hydrogen; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; And an amine group substituted or unsubstituted with a C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group .

In one embodiment of the present application, R1 and R3 to R7 in Formula 1 may each independently be hydrogen or deuterium.

In the present application, the substituents of the above formulas (1) to (9) will be described in more detail as follows.

As used herein, the term "substituted or unsubstituted" A halogen group; -CN; A C ₁ to C ₆₀ alkyl group; A C ₂ to C ₆₀ alkenyl group; An alkynyl group of C ₂ to C ₆₀ ; A C ₃ to C ₆₀ cycloalkyl group; A C ₂ to C ₆₀ heterocycloalkyl group; A C ₆ to C ₆₀ aryl group; A C ₂ to C ₆₀ heteroaryl group; -SiR ' R "; -P (= O) RR '; C ₁ to C ₂₀ alkylamine groups; C ₆ to C ₆₀ arylamine groups; And a heteroarylamine group having from ₂ to ₆₀ carbon atoms, or substituted or unsubstituted with a substituent having two or more of the substituents bonded thereto, or two or more substituents selected from the above substituents are connected to each other Quot; means substituted or unsubstituted with a substituent. For example, the "substituent group to which two or more substituents are connected" may be a biphenyl group. That is, the biphenyl group may be an aryl group, and may be interpreted as a substituent in which two phenyl groups are connected. The additional substituents may be further substituted. A substituted or unsubstituted C ₁ to C ₆₀ alkyl group, a substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group, a substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group, a substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group, An alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group.

According to one embodiment of the present application, the "substituted or unsubstituted" refers to a group selected from the group consisting of deuterium, a halogen group, -CN, SiRR'R ", P (═O) RR ', a C ₁ to C ₂₀ linear or branched alkyl group , A C ₆ to C ₆₀ aryl group, and a C ₂ to C ₆₀ heteroaryl group,

A halogen atom, -CN, a C ₁ to C ₂₀ alkyl group, a C ₆ to C ₆₀ aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group, and C ₂ to C ₆₀ substituted heteroaryl or unsubstituted alkyl group of C ₁ to C _60; an aryl group of deuterium, halogen, -CN, C ₁ to C ₂₀ alkyl group, C ₆ to C ₆₀ a, and C ₂ to a substituted or unsubstituted group of the C ₆₀ heteroaryl C ₃ to C ₆₀ cycloalkyl group; a deuterium, a halogen, -CN, an alkyl group of C ₁ to C _20, C ₆ to C ₆₀ aryl, and C ₂ to C ₆₀ substituted or unsubstituted group heteroaryl C ₆ to C ₆₀ aryl group; or an alkyl group of deuterium, halogen, -CN, C ₁ to C _20, C ₆ to C ₆₀ aryl, and C ₂ to C ₆₀ the heteroaryl group is a heteroaryl group, a substituted or unsubstituted C ₂ to C _60.

The term "substituted" means that the hydrogen atom bonded to the carbon atom of the compound is replaced with another substituent, and the substituted position is not limited as long as the substituent is a substitutable position, , Two or more substituents may be the same as or different from each other.

In the present specification, the halogen may be fluorine, chlorine, bromine or iodine.

In the present specification, the alkyl group includes a straight chain or a branched chain having 1 to 60 carbon atoms, and may be further substituted by other substituents. The number of carbon atoms of the alkyl group may be 1 to 60, specifically 1 to 40, more specifically 1 to 20. Specific examples include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, Ethyl, propyl, isopropyl, n-butyl, isobutyl, isobutyl, isobutyl, An n-pentyl group, a tert-butyl group, a tert-butyl group, a 3-methylbutyl group, a 3-methylbutyl group, a 2-ethylbutyl group, a heptyl group, Ethylhexyl group, 2-propylpentyl group, n-nonyl group, 2,2-dimethylheptyl group, 1-ethyl-propyl group, 1,1-dimethyl-propyl group , Isohexyl group, 2-methylpentyl group, 4-methylhexyl group, 5-methylhexyl group and the like, but is not limited thereto.

In the present specification, the alkenyl group includes a straight chain or a branched chain having 2 to 60 carbon atoms, and may be further substituted by other substituents. The carbon number of the alkenyl group may be 2 to 60, specifically 2 to 40, more specifically, 2 to 20. Specific examples include a vinyl group, a 1-propenyl group, an isopropenyl group, a 1-butenyl group, a 2-butenyl group, a 3-butenyl group, a 1-pentenyl group, a 2-pentenyl group, a 3-pentenyl group, 2-phenylvinyl-1-yl group, 2,2-diphenylvinyl-1-yl group, 2-phenyl-2-yl group, But are not limited to, - (naphthyl-1-yl) vinyl-1-yl group, 2,2-bis (diphenyl-1-yl) vinyl-1-yl group, stilbenyl group, styrenyl group and the like.

In the present specification, the alkynyl group includes a straight chain or a branched chain having 2 to 60 carbon atoms, and may be further substituted by other substituents. The carbon number of the alkynyl group may be 2 to 60, specifically 2 to 40, more specifically, 2 to 20.

In the present specification, the cycloalkyl group includes monocyclic or polycyclic rings having 3 to 60 carbon atoms, and may be further substituted by other substituents. Herein, the term "polycyclic" means a group in which a cycloalkyl group is directly connected to another ring group or condensed therewith. Here, the other ring group may be a cycloalkyl group, but may be another ring group such as a heterocycloalkyl group, an aryl group, a heteroaryl group and the like. The number of carbon atoms of the cycloalkyl group may be 3 to 60, specifically 3 to 40, more particularly 5 to 20. Specific examples thereof include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a 3-methylcyclopentyl group, a 2,3-dimethylcyclopentyl group, a cyclohexyl group, a 3-methylcyclohexyl group, , 3-dimethylcyclohexyl group, 3,4,5-trimethylcyclohexyl group, 4-tert-butylcyclohexyl group, cycloheptyl group, cyclooctyl group and the like, but are not limited thereto.

In the present specification, the heterocycloalkyl group includes O, S, Se, N or Si as a heteroatom and includes monocyclic or polycyclic rings having 2 to 60 carbon atoms, and may be further substituted by other substituents. Here, the polycyclic ring means a group in which the heterocycloalkyl group is directly connected to another ring group or condensed. Here, the other ring group may be a heterocycloalkyl group, but may be another ring group such as a cycloalkyl group, an aryl group, a heteroaryl group and the like. The number of carbon atoms of the heterocycloalkyl group may be 2 to 60, specifically 2 to 40, more specifically 3 to 20.

In the present specification, the aryl group includes monocyclic or polycyclic rings having 6 to 60 carbon atoms, and may be further substituted by other substituents. Herein, a polycyclic ring means a group in which an aryl group is directly connected to another ring group or condensed with another ring group. Here, the other ring group may be an aryl group, but may be another kind of ring group such as a cycloalkyl group, a heterocycloalkyl group, a heteroaryl group and the like. The aryl group includes a spiro group. The carbon number of the aryl group may be 6 to 60, specifically 6 to 40, more specifically 6 to 25. Specific examples of the aryl group include a phenyl group, a biphenyl group, a triphenyl group, a naphthyl group, an anthryl group, a klychenyl group, a phenanthrenyl group, a perylenyl group, a fluoranthenyl group, a triphenylenyl group, An acenaphthyl group, a benzofluorenyl group, a spirobifluorenyl group, a 2,3-dihydro-1H-indenyl group, a condensed ring group thereof, a thiophenecarbonyl group, , But are not limited thereto.

In the present specification, the spiro group is a group including a spiro structure and may have from 15 to 60 carbon atoms. For example, the spiro group may include a structure in which a 2,3-dihydro-1H-indene group or a cyclohexane group is spiro-bonded to a fluorenyl group. Specifically, the following spiro groups may include any of the groups of the following structural formulas.

In the present specification, the heteroaryl group includes S, O, Se, N or Si as a hetero atom and includes monocyclic or polycyclic rings having 2 to 60 carbon atoms, and may be further substituted by other substituents. Herein, the polycyclic ring means a group in which the heteroaryl group is directly connected to another ring group or condensed therewith. Here, the other ring group may be a heteroaryl group, but may be another ring group such as a cycloalkyl group, a heterocycloalkyl group, an aryl group and the like. The heteroaryl group may have 2 to 60 carbon atoms, specifically 2 to 40 carbon atoms, more specifically 3 to 25 carbon atoms. Specific examples of the heteroaryl group include a pyridyl group, a pyrrolyl group, a pyrimidyl group, a pyridazinyl group, a furanyl group, a thiophene group, an imidazolyl group, a pyrazolyl group, an oxazolyl group, A thiazolyl group, a thiazolyl group, a furazanyl group, an oxadiazolyl group, a thiadiazolyl group, a dithiazolyl group, a tetrazolyl group, a paranyl group, a thiopyranyl group, a diazinyl group, , A thiazinyl group, a dioxinyl group, a triazinyl group, a tetrazinyl group, a quinolyl group, an isoquinolyl group, a quinazolinyl group, an isoquinazolinyl group, a quinolizolyl group, a naphthyridyl group, An imidazopyridinyl group, a diazanaphthalenyl group, a triazinediyl group, an indolyl group, an indolizinyl group, a benzothiazolyl group, a benzoxazolyl group, a benzimidazolyl group, a benzothiophenyl group, a benzothiophenyl group , A dibenzothiophene group, a dibenzofuran group, a carbazolyl group, a benzocarbazolyl group, (Dibenzosilyl), dihydrophenazinyl, phenoxazinyl, phenanthridyl, imidazopyridinyl, thienyl, indolo [3,3-d] pyrimidinyl, 2,3-a] carbazolyl group, indolo [2,3-b] carbazolyl group, indolinyl group, 10,11-dihydrodibenzo [b, f] azepine group, 9,10-dihydro A phenanthrolinyl group, a phenanthrazinyl group, a phenothiatriazinyl group, a phthalazinyl group, a naphthyridinyl group, a phenanthrolinyl group, a benzo [c] [1,2,5] thiadiazolyl group, 1,5-c] quinazolinyl group, pyrido [l, 2-b] indazolyl group, pyrido [l, 2- a] imidazo [1,2-e] indolinyl group, and 5,11-dihydroindeno [1,2-b] carbazolyl group.

In the present specification, the amine group is a monoalkylamine group; Monoarylamine groups; A monoheteroarylamine group; -NH ₂ ; A dialkylamine group; A diarylamine group; A diheteroarylamine group; Alkylarylamine groups; Alkylheteroarylamine groups; And an arylheteroarylamine group. The number of carbon atoms is not particularly limited, but is preferably 1 to 30. Specific examples of the amine group include a methylamine group, a dimethylamine group, an ethylamine group, a diethylamine group, a phenylamine group, a naphthylamine group, a biphenylamine group, a diphenylamine group, an anthracenylamine group, A phenylphenylamine group, a diphenylamine group, a methyl-anthracenylamine group, a diphenylamine group, a phenylnaphthylamine group, a ditolylamine group, a phenyltolylamine group, a triphenylamine group, a biphenylnaphthylamine group, Naphthylamine amine group, phenylnaphthylamine amine group, phenylnaphthylamine amine group, biphenyltriphenylenylamine group, and the like.

In the present specification, an arylene group means a group having two bonding positions in an aryl group, that is, a divalent group. The description of the aryl group described above can be applied except that each of these is 2 groups. Further, the heteroarylene group means that the heteroaryl group has two bonding positions, i.e., divalent. The description of the above-mentioned heteroaryl groups can be applied, except that they are each 2 groups.

이고, 상기 X3 및 X4는 치환 또는 비치환된 C₆ 내지 C₆₀의 방향족 탄화수소 고리; 또는 치환 또는 비치환된 C₂ 내지 C₆₀의 방향족 헤테로 고리일 수 있다.According to one embodiment of the present application, Y in formula (1)

X3 and X4 are substituted or unsubstituted C ₆ to C ₆₀ aromatic hydrocarbon rings; Or a substituted or unsubstituted C ₂ to C ₆₀ aromatic heterocycle.

는 하기 구조식들 중 어느 하나로 표시될 수 있으나, 이에만 한정되는 것은 아니다.remind

May be represented by any one of the following structural formulas, but it is not limited thereto.

In the above structural formulas, Z ₁ to Z ₃ are the same or different from each other and are each independently S or O,

Z ₄ to Z ₁₀ are the same or different and are each independently CR 'R ", NR', S or O,

Is aryl or a substituted or unsubstituted C ₆ to C ₆₀ ring; R 'and R "are the same or different and each is independently of the others hydrogen; substituted or unsubstituted C ₁ to C ₆₀ alkyl.

According to one embodiment of the present application, the formula 1 may be represented by any one of the following compounds, but is not limited thereto.

Also, by introducing various substituents into the structure of Formula 1, it is possible to synthesize a compound having the intrinsic characteristics of the substituent introduced. For example, by introducing a substituent mainly used in a hole injecting layer material, a hole transporting material, a light emitting layer material, and an electron transporting layer material used in manufacturing an organic light emitting device into the core structure, a material meeting the requirements of each organic layer is synthesized .

In addition, by introducing various substituents into the structure of Formula 1, it is possible to finely control the energy band gap, and the characteristics at the interface between the organic materials can be improved and the use of the materials can be diversified.

On the other hand, the above-mentioned heterocyclic compound has a high glass transition temperature (Tg) and thus is excellent in thermal stability. This increase in thermal stability is an important factor in providing drive stability to the device.

The heterocyclic compound according to one embodiment of the present application can be prepared by a multistage chemical reaction. Some intermediate compounds may be prepared first, and compounds of formula (1) may be prepared from the intermediate compounds. More specifically, the heterocyclic compound according to one embodiment of the present application can be prepared on the basis of the following production example.

Another embodiment of the present application provides an organic light emitting device comprising a heterocyclic compound represented by the above formula (1).

The organic light emitting device according to an embodiment of the present application can be manufactured by a conventional method and material for manufacturing an organic light emitting device, except that one or more organic compound layers are formed using the above-described heterocyclic compound.

The heterocyclic compound may be formed into an organic material layer by a solution coating method as well as a vacuum deposition method in the production of an organic light emitting device. Here, the solution coating method refers to spin coating, dip coating, inkjet printing, screen printing, spraying, roll coating and the like, but is not limited thereto.

Specifically, the organic light emitting device according to one embodiment of the present application includes a cathode, a cathode, and at least one organic layer provided between the anode and the cathode, and at least one of the organic layers includes a heterocycle ≪ / RTI >

FIGS. 1 to 3 illustrate the stacking process of the electrode and the organic layer of the organic light emitting diode according to one embodiment of the present application. However, it is not intended that the scope of the present application be limited by these drawings, and the structure of the organic light emitting device known in the art can be applied to the present application.

1, an organic light emitting device in which an anode 200, an organic layer 300, and a cathode 400 are sequentially stacked on a substrate 100 is shown. However, the present invention is not limited to such a structure, and an organic light emitting device in which a cathode, an organic material layer, and an anode are sequentially stacked on a substrate may be implemented as shown in FIG.

FIG. 3 illustrates the case where the organic material layer is a multilayer. 3 includes a hole injection layer 301, a hole transport layer 302, a light emitting layer 303, a hole blocking layer 304, an electron transport layer 305, and an electron injection layer 306. However, the scope of the present application is not limited by such a laminated structure, and if necessary, the remaining layers except the light emitting layer may be omitted, and other necessary functional layers may be further added.

The organic light emitting device according to the present invention can be manufactured by materials and methods known in the art, except that at least one of the organic material layers contains the heterocyclic compound represented by the formula (1).

The heterocyclic compound represented by the formula (1) may constitute one or more layers of the organic material layer of the organic light emitting device. However, if necessary, the organic material layer may be formed by mixing with other materials.

The heterocyclic compound represented by Formula 1 may be used as an electron transport layer, a hole blocking layer, a material for a light emitting layer, and the like in an organic light emitting device. For example, the heterocyclic compound represented by Formula 1 may be used as a material for an electron transport layer, a hole transport layer, or a light emitting layer of an organic light emitting device.

The heterocyclic compound represented by Formula 1 may be used as a material of the light emitting layer in an organic light emitting device. For example, the heterocyclic compound represented by Formula 1 may be used as a material of a phosphorescent host of an emission layer in an organic light emitting device.

In the organic light emitting device according to one embodiment of the present application, materials other than the heterocyclic compound of Formula 1 are illustrated below, but these are for illustrative purposes only and are not intended to limit the scope of the present application, , ≪ / RTI >

As the cathode material, materials having a relatively large work function can be used, and a transparent conductive oxide, a metal, or a conductive polymer can be used. Specific examples of the cathode material include metals such as vanadium, chromium, copper, zinc, and gold, or alloys thereof; Metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO); ZnO: Al or SnO _2: a combination of a metal and an oxide such as Sb; Conductive polymers such as poly (3-methylthiophene), poly [3,4- (ethylene-1,2-dioxy) thiophene] (PEDOT), polypyrrole and polyaniline.

As the cathode material, materials having relatively low work functions can be used, and metals, metal oxides, conductive polymers, and the like can be used. Specific examples of the negative electrode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead or alloys thereof; Layer structure materials such as LiF / Al or LiO ₂ / Al, but are not limited thereto.

As the hole injecting material, a known hole injecting material may be used. For example, a phthalocyanine compound such as copper phthalocyanine disclosed in U.S. Patent No. 4,356,429 or a compound described in Advanced Material, 6, p. 677 (1994) Star burst type amine derivatives such as tris (4-carbamoyl-9-phenyl) amine (TCTA), 4,4 ', 4 "-tri [phenyl (m- tolyl) amino] triphenylamine MTDAPA), polyaniline / dodecylbenzenesulfonic acid (poly (vinylidene fluoride)) or poly (vinylidene fluoride), which is a soluble conductive polymer, such as 1,3,5-tris [4- (3,4-ethylenedioxythiophene) / poly (4-styrenesulfonate), polyaniline / camphor sulfonic acid or polyaniline / Poly (4-styrene-sulfonate) and the like can be used.

As the hole transporting material, a pyrazoline derivative, an arylamine derivative, a stilbene derivative, a triphenyldiamine derivative, or the like may be used, and a low molecular weight or a high molecular weight material may be used.

Examples of the electron transporting material include oxadiazole derivatives, anthraquinodimethane and derivatives thereof, benzoquinone and derivatives thereof, naphthoquinone and derivatives thereof, anthraquinone and derivatives thereof, tetracyanoanthraquinodimethane and derivatives thereof, Derivatives thereof, diphenyldicyanoethylene and derivatives thereof, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and derivatives thereof, and the like may be used as well as low molecular weight materials and high molecular weight materials.

As the electron injecting material, for example, LiF is typically used in the art, but the present application is not limited thereto.

As the light emitting material, red, green or blue light emitting materials may be used, and if necessary, two or more light emitting materials may be mixed and used. Further, a fluorescent material may be used as a light emitting material, but it may be used as a phosphorescent material. As the light emitting material, a material which emits light by coupling holes and electrons respectively injected from the anode and the cathode may be used. However, materials in which both the host material and the dopant material participate in light emission may also be used.

The organic light emitting device according to one embodiment of the present application may be a top emission type, a back emission type, or a both-sided emission type, depending on the material used.

The heterocyclic compound according to one embodiment of the present application may act on a principle similar to that applied to organic light emitting devices in organic electronic devices including organic solar cells, organic photoconductors, organic transistors and the like.

Hereinafter, the present invention will be described in more detail by way of examples, but these are for the purpose of illustrating the present application and are not intended to limit the scope of the present application.

< Example >

< Synthetic example  1> Preparation of Compound 1-1

Compound 2-mercaptobenzimidazole 11.6g (77.7m㏖), 5- bromo-2-chloro-3-nitropyridine _{16.6g (69.9m㏖), Cs 2 CO} 3 63.2g (194m㏖) and dimethylsulfoxide 350 mL of the side was added, and the reaction was carried out at 130 DEG C for 12 hours. After cooling to room temperature, it was extracted with distilled water, dichloromethane and NaCl. After filtering with silica gel and celite, Recrystallization from dichloromethane and hexane gave 13.4 g (63%) of the desired compound 1-1 .

< Manufacturing example  1> Preparation of Compound 28

Compound 1-1 5g (16.5m㏖), 9- phenyl -9H, 9'H-3,3'- bis carbazole 6.74g (16.5m㏖), CuI 3.14g ( 16.5m㏖), K 3 PO 4 7.00 g (32.9 mmol) of 2-cyclohexanediamine, 2 mL (16.5 mmol) of 1,2-cyclohexanediamine and 60 mL of 1,4-dioxane. The reaction was refluxed for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was distilled off under reduced pressure, and the residue was purified by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 7.48 g (72%) of the target compound 28 .

< Manufacturing example  2> Preparation of Compound 33

15.43 g (29.2 mmol) of Compound 1-1 (10.9 g, 32.9 mmol) and (9,9'-diphenyl-9H, 9'H- [3,3'-bicarbazol- 1.40 g (1.22 mmol) of Pd (PPh ₃ ) ₄ , 6.72 g (48.6 mmol) of K ₂ CO ₃ , 200 mL of toluene, 50 mL of ethanol and 50 mL of H ₂ O were purged with nitrogen. The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. Purification by column chromatography using hexane: dichloromethane = 4: 1 yielded 14.5 g (70%) of the desired compound 33 .

< Manufacturing example  3> Preparation of Compound 34

The compound 1-1 (7.4 g, 24.3 mmol), 9- (4,6-diphenyl-1,3,5-triazin-2-yl) -3- (4,4,5,5- 1,3,2- dioxa view it is 2-yl) -9H- carbazole 15.31g (29.2m㏖), Pd (PPh 3) 4 1.40g (1.22m㏖), K 2 CO 3 6.72g ( 48.5 mmol), toluene (300 mL), ethanol (60 mL) and H ₂ O (60 mL). The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was distilled off and purified by column chromatography using hexane: dichloromethane = 4: 1 to obtain 9.96 g (66%) of the desired compound 34 .

< Manufacturing example  4> Preparation of Compound 35

Preparation of Compound 35-1

Compound 1-1 10g (24.3m㏖), (9H- carbazol-3-yl) boronic acid 6.16g (29.2m㏖), Pd (PPh 3) 4 1.40g (1.22m㏖), K 2 CO 3 6.72 g (48.6 mmol), toluene (200 mL), ethanol (50 mL), and H ₂ O (50 mL). The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , the solvent was removed by a rotary evaporator, and the residue was purified by column chromatography using hexane: dichloromethane = 4: 1 to obtain 9.88 g (76%) of the title compound 35-1 .

Preparation of Compound 35

(16.5 mmol) of Compound 35-1, 6.4 g (16.5 mmol) of 2- (3-bromophenyl) -4,6-diphenyl-1,3,5-triazine, 3.14 g 7.00 g (32.9 mmol) of K ₃ PO ₄ , 2 mL (16.5 mmol) of 1,2-cyclohexanediamine and 60 mL of 1,4-dioxane were placed and replaced with nitrogen. The reaction was refluxed for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was removed by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 7.49 g (72%) of the desired compound 35 .

< Manufacturing example  5> Preparation of Compound 44

, 4.3 g (15.2 mmol) of 7, 7-dimethyl-5,7-dihydroindeno [2,1-b] carbazole, 2.89 g (15.2 mmol) of CuI, , 6.44 g (30.3 mmol) of K ₃ PO ₄ , 1.82 mL (15.2 mmol) of 1,2-cyclohexanediamine and 60 mL of 1,4-dioxane. The reaction was refluxed for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was removed by filtration on silica gel using hexane: ethyl acetate = 5: 1 to obtain 7.8 g (78%) of the target compound 44 .

< Manufacturing example  6> Preparation of Compound 47

Compound 1-1 6g (19.7m㏖), compound 11-phenyl -11,12- dihydro-indol [2,3-a] carbazole _{6.47g (19.5m㏖), Pd 2 (} dba) 3 891mg (0.97 5.61 g (58.4 mmol) of NaOBu-t, 2.25 g (3.89 mmol) of Zanphor and 65 mL of toluene were placed and replaced with nitrogen. The reaction was carried out under reflux conditions for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using MC: ethyl acetate = 10: 1 to obtain 8.7 g (80%) of the desired compound 47 .

< Manufacturing example  7> Preparation of Compound 48

Compound 1-1 6g (19.7m㏖), the compound 5-phenyl-5,7-dihydro-indol [2,3-b] carbazole _{6.47g (19.5m㏖), Pd 2 (} dba) 3 891mg (0.97 (2.89 g, 3.89 mmol), 5.61 g (58.4 mmol) of NaOBu-t, and 65 mL of toluene. The reaction was carried out under reflux conditions for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using MC: ethyl acetate = 10: 1 to obtain 9.3 g (85%) of the objective compound 48 .

< Manufacturing example  8> Preparation of Compound 90

Preparation of Compound 8-2

4.5 g (15.8 mM) of 7,7-dimethyl-5,7-dihydroindeno [2,1-b] carbazole, 5.0 g (19.0 mM) of 2-bromodibenzo [b, 1.9 mL (15.8 mM) of trans-1,2-diaminocyclohexane and 3.3 g (31.6 mM) of K ₃ PO ₄ were dissolved in 100 mL of 1,4-oxalic acid and refluxed for 24 hours. After the reaction was completed, distilled water and DCM were added at room temperature, and the organic layer was dried with MgSO ₄ and the solvent was removed using a rotary evaporator. The reaction product was purified by column chromatography (DCM: Hex = 1: 3) and recrystallized from methanol to obtain 7.3 g (85%) of the target compound 8-2.

Preparation of Compound 8-1

To a mixed solution of 6.7 g (14.3 mM) of Compound 8-2 and 100 mL of THF was added dropwise 7.4 mL (18.6 mM) of 2.5M n-BuLi at -78 ° C and the mixture was stirred at room temperature for 1 hour. To the reaction mixture, 4.8 mL (42.9 mM) of trimethylborate (B (OMe) ₃ ) was added dropwise, and the mixture was stirred at room temperature for 2 hours. After the reaction was completed, distilled water and DCM were added at room temperature, and the organic layer was dried with MgSO ₄ and the solvent was removed using a rotary evaporator. The reaction product was purified by column chromatography (DCM: MeOH = 100: 3) and recrystallized with DCM to obtain 5.1 g (70%) of the target compound 8-1.

Preparation of Compound 90

Compound 8-1 9.7g (19.0mM), Compound 1-1 5.8g (19.0mM), Pd ( PPh 3) 4 1.1g (0.95mM) , and K ₂ CO ₃ 5.2g (38.0mM) in toluene / EtOH / Dissolved in 100/20 / mL of H ₂ O and refluxed for 12 hours. After the reaction was completed, distilled water and DCM were added at room temperature, and the organic layer was dried with MgSO ₄ and the solvent was removed using a rotary evaporator. The reaction product was purified by column chromatography (DCM: Hex = 1: 3) and recrystallized from methanol to obtain 9.2 g (70%) of the target compound 90.

<Comparison Synthetic example  1> Preparation of Comparative Compound 1-1

A solution of 30 g (199 mmol) of 2-mercaptobenzimidazole, 51 g (182 mol) of 1,4-dibromonitrobenzene, 148 g (454 mmol) of Cs ₂ CO ₃ and 600 mL of dimethylsulfoxide was added, Lt; / RTI &gt; After cooling to room temperature, the solution was filtered using acetone, dissolved in dichloromethane, filtered using silica gel, celite, and prolysyl Methane, and filtered to obtain 45 g (82%) of the objective comparative compound 1-1 (Ref 1-1) .

<Comparison Synthetic example  2> Preparation of comparative compound 2-1

(199 mmol) of 2-mercaptobenzimidazole, 51 g (182 mol) of 2,3-dichloronitrobenzene, 148 g (454 mmol) of Cs ₂ CO ₃ and 600 mL of dimethylsulfoxide were placed and reacted at 130 ° C for 2 hours . After cooling to room temperature, the solution was filtered using acetone, dissolved in dichloromethane, filtered using silica gel, celite, and prolysyl After slurrying with methanol, the mixture was filtered to obtain 30 g (58%) of comparative compound 2-1 .

<Comparison Synthetic example  3> Preparation of Comparative Compound 3-1

30 g (199 mmol) of 2-mercaptobenzimidazole, 51 g (182 mol) of 2,4-dibromo-1-nitrobenzene, 148 g (454 mmol) of CS ₂ CO ₃ and 600 mL of dimethylsulfoxide were placed, For 2 hours. After cooling to room temperature, the solution was filtered using acetone, dissolved in dichloromethane, filtered using silica gel, celite, and prolysyl After slurrying with methanol, the mixture was filtered to obtain 41 g (75%) of the aimed comparative compound 3-1 (Ref 3-1) .

<Comparison Manufacturing example  1> Preparation of Comparative Compound 1

(16.5 mmol) of Comparative Compound 1-1 (Ref 1-1), 9.74 g (16.5 mmol) of 9-phenyl-9H, 9'H-3,3'-biscarbazole, 7.00 g (32.9 mmol) of K ₃ PO ₄ , 2 mL (16.5 mmol) of 1,2-cyclohexanediamine and 60 mL of 1,4-dioxane. The reaction was refluxed for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 7.49 g (72%) of the objective comparative compound 1 (Ref 1) .

<Comparison Manufacturing example  2> Preparation of Comparative Compound 2

Comparative Compound 1-1 10 g (24.3 mmol) of (9,9'-diphenyl-9H, 9'H- [3,3'-biscarbazol] -6-yl) boronic acid 15.43 g 1.40 g (1.22 mmol) of Pd (PPh ₃ ) ₄ , 6.72 g (48.6 mmol) of K ₂ CO ₃ , 200 mL of toluene, 50 mL of ethanol and 50 mL of H ₂ O were purged with nitrogen. The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using hexane: dichloromethane = 4: 1 to obtain 12 g (70%) of the objective comparative compound 2 (Ref 2) .

<Comparison Manufacturing example  3> Preparation of Comparative Compound 3

10 g (24.3 mmol) of the comparative compound 1-1 (Ref 1-1), 9- (4,6-diphenyl-1,3,5-triazin- , 5-tetramethyl-1,3,2-dioxa-view it is 2-yl) -9H- carbazole 15.31g (29.2m㏖), Pd (PPh 3) 4 1.40g (1.22m㏖), K ₂ CO ₃ , 300 mL of toluene, 60 mL of ethanol, and 60 mL of H ₂ O were placed and replaced with nitrogen. The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using hexane: dichloromethane = 4: 1 to obtain 9.96 g (66%) of Comparative Compound 3 (Ref 3) .

<Comparison Manufacturing example  4> Preparation of Comparative Compound 4

Preparation of Comparative Compound 4-1

Compound 1-1 (Ref 1-1) 10g (24.3m㏖ ), (9H- carbazol -3-yl) boronic acid 6.16g (29.2m㏖), Pd (PPh 3) 4 1.40g (1.22m㏖) , 6.72 g (48.6 mmol) of K ₂ CO ₃ , 200 mL of toluene, 50 mL of ethanol and 50 mL of H ₂ O were placed and replaced with nitrogen. The reaction was carried out at 100 ° C for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using hexane: dichloromethane = 4: 1 to obtain 9.88 g (76% ) of the objective comparative compound 4-1 (Ref 4-1) ).

Preparation of Comparative Compound 4

(16.5 mmol) of Compound 15-1, 6.4 g (16.5 mmol) of 2- (3-bromophenyl) -4,6-diphenyl-1,3,5-triazine, 7.00 g (32.9 mmol) of K ₃ PO ₄ , 2 mL (16.5 mmol) of 1,2-cyclohexanediamine and 60 mL of 1,4-dioxane were placed and replaced with nitrogen. The reaction was refluxed for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed by a rotary evaporator. The solvent was distilled off and the residue was purified by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 7.49 g (72%) of the target compound 4 (Ref 4) .

<Comparison Manufacturing example  5> Preparation of Comparative Compound 5

Comparison compound 1-1 (Ref 1-1) 6g (19.5m㏖ ), carbazole 6.47g [2,3-a] to the compound 11-phenyl -11,12- dihydro-indole (19.5m㏖), Pd ₂ (dba) ₃ , 2.25 g (3.89 mmol) of Zanphor, 5.61 g (58.4 mmol) of NaOBu-t, and 65 mL of toluene. The reaction was carried out under reflux conditions for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. Purification by column chromatography using MC: ethyl acetate = 10: 1 yielded 9.2 g (85%) of the objective comparative compound 5 (Ref 5) .

<Comparison Manufacturing example  6> Preparation of Comparative Compound 6

14.9 g (52.7 mmol) of the compound 7,7-dimethyl-5,7-dihydroindeno [2,1-b] carbazole, 1.39 g (57.9 mmol) of NaH and 200 mL of DMF were placed and replaced with nitrogen. After reacting for 1 hour at room temperature, 15 g (57.9 mmol) of the comparative compound 2-1 (Ref 2-1) was added, refluxed and reacted for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 19.1 g (72%) of the objective comparative compound 6 (Ref 6) .

<Comparison Manufacturing example  7> Preparation of Comparative Compound 7

(19.5 mmol) of the compound 11-phenyl-11,12-dihydroindolo [2,3-a] carbazole, 6.47 g (19.5 mmol) of the compound 11-Pd ₂ (dba) ₃ , 2.25 g (3.89 mmol) of Zanphor, 5.61 g (58.4 mmol) of NaOBu-t, and 65 mL of toluene. The reaction was carried out under reflux conditions for 12 hours and extracted with distilled water, dichloromethane and NaCl. The organic layer was dried over anhydrous MgSO ₄ , and the solvent was removed using a rotary evaporator. The solvent was then purified by column chromatography using dichloromethane: ethyl acetate = 10: 1 to obtain 8.7 g (80%) of Comparative Compound 7 (Ref 7) .

Compounds were prepared in the same manner as in the above Preparation Examples, and the results of confirmation of the synthesis are shown in Tables 1 to 3 below.

[Table 1]

[Table 2]

[Table 3]

4 shows the LTPL results measured at a wavelength of 357 nm of Compound 44. FIG.

Figure 5 shows the LC / MS results for compound 44.

6 shows LC / MS results of Comparative Compound 1. Fig.

Fig. 7 shows LC / MS results of Comparative Compound 2. Fig.

Fig. 8 shows LC / MS results of Comparative Compound 3. Fig.

FIG. 9 shows LC / MS results of Comparative Compound 5. FIG.

LC / MS was measured using an Agilent 6530 Accurate-Mass Q-TOF LC / MS instrument. More specifically, each of compound 44, comparative compound 1, comparative compound 2, comparative compound 3 and comparative compound 5 1 mg was dissolved in 1 mL of THF, and the desired molecular weight was confirmed using the above equipment. Addition of 1 to the molecular weight measured by the instrument shows the actual molecular weight. The result shows that the target compound is synthesized properly.

< Experimental Example >

1) Fabrication of organic light emitting device

The glass substrate coated with ITO thin film with a thickness of 1,500 Å was washed with distilled water ultrasonic waves. After washing with distilled water, ultrasonic cleaning is performed with a solvent such as acetone, methanol, isopropyl alcohol, etc., followed by UVO treatment for 5 minutes using UV in a UV scrubber. Subsequently, the substrate was transferred to a plasma cleaner (PT), subjected to a plasma treatment to remove ITO work function and residual film in a vacuum state, and transferred to a thermal vapor deposition apparatus for vapor deposition.

On the ITO transparent electrode (anode), a hole injection layer 2-TNATA (4,4 ', 4 "-tris [2-naphthyl (phenyl) amino] triphenylamine) and a hole transport layer NPB (1-naphthyl) -N, N'-diphenyl- (1,1'-biphenyl) -4,4'-diamine.

The light emitting layer was then subjected to thermal vacuum deposition as follows. As the host, the compound shown in the following table and Ir (ppy) ₃ (tris (2-phenylpyridine) iridium) was used as a green phosphorescent dopant. The host was doped with phosphorescent dopant by 7% to deposit 400Å. Then, BCP was deposited to a thickness of 60Å as a hole blocking layer, and Alq ₃ was deposited to a thickness of 200Å as an electron transport layer thereon. Finally, lithium fluoride (LiF) was deposited to a thickness of 10 Å on the electron transport layer to form an electron injection layer. An aluminum (Al) cathode was deposited on the electron injection layer to a thickness of 1200 Å to form a cathode. Thereby preparing a light emitting device.

On the other hand, all the organic compounds required for OLED device fabrication were vacuum sublimated and refined under 10 ^-6 ~ 10 ^-8 torr for each material, and used for OLED fabrication.

2) Organic Field  The driving voltage and luminous efficiency of the light-

Electroluminescence (EL) characteristics of the organic electroluminescent device fabricated as described above were measured with a M7000 of Mitsubishi Electric Corporation, and the reference luminance was 6,000 through a life span measuring instrument (M6000) manufactured by Mac Science Co., When cd / m ² , T ₉₀ was measured. The characteristics of the organic electroluminescent device of the present invention are shown in Table 4 below.

[Table 4]

As can be seen from the results of Table 4, the organic electroluminescent device using the organic electroluminescent light emitting layer material of the present invention has a lower driving voltage, improved luminous efficiency, and significantly improved lifetime as compared with Comparative Examples 1 to 8 .

Claims (11)

A heterocyclic compound represented by the following formula (1):
[Chemical Formula 1]

In Formula 1,
At least one of R1 to R7 is represented by - (L) p- (Y) q, and the remainder each independently represents hydrogen; heavy hydrogen; A halogen group; -CN; A substituted or unsubstituted C ₁ to C ₆₀ alkyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkenyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkynyl group; A substituted or unsubstituted C ₁ to C ₆₀ alkoxy group; A substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group; Substituted or unsubstituted C ₂ to C ₆₀ heterocycloalkyl group of; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; -SiRR'R "; -P (= O) RR '; and the C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ of Or an amine group substituted or unsubstituted with a heteroaryl group, or two or more groups adjacent to each other may be bonded to each other to form a substituted or unsubstituted aliphatic or aromatic hydrocarbon ring,
L is a direct bond; A substituted or unsubstituted C ₆ to C ₆₀ arylene group; Or a substituted or unsubstituted C ₂ to C ₆₀ heteroarylene group,
Y is hydrogen; heavy hydrogen; A halogen group; -CN; A substituted or unsubstituted C ₁ to C ₆₀ alkyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkenyl group; A substituted or unsubstituted C ₂ to C ₆₀ alkynyl group; A substituted or unsubstituted C ₁ to C ₆₀ alkoxy group; A substituted or unsubstituted C ₃ to C ₆₀ cycloalkyl group; Substituted or unsubstituted C ₂ to C ₆₀ heterocycloalkyl group of; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; -SiRR'R "; -P (= O) RR '; and the C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ of A substituted or unsubstituted aryl group, a substituted or unsubstituted aryl group,
p is from 0 to 10, q is from 1 to 10,
A substituted or unsubstituted C ₁ to C ₆₀ linear or branched alkyl group, a substituted or unsubstituted C ₃ to C ₆₀ linear or branched alkyl group, a substituted or unsubstituted C ₃ to C alkenyl group, for C ₆₀ monocyclic or polycyclic cycloalkyl group; or a substituted or unsubstituted C ₂ to C ₆₀ monocyclic or polycyclic heteroaryl group; a substituted or unsubstituted monocyclic ring of C ₆ to C ₆₀ aryl or polycyclic group. The heterocyclic compound according to claim 1, wherein the compound represented by Formula 1 is represented by Formula 2:
(2)

In the above Chemical Formulas 2 to 9, R2 is represented by - (L) p- (Y) q
L, Y, p and q are the same as defined in the above formula (1). 2. The heterocyclic compound according to claim 1, wherein R1 and R3 to R7 in Formula 1 are each independently hydrogen or deuterium. 2. The compound according to claim 1, wherein Y in the formula (1) is hydrogen; heavy hydrogen; A substituted or unsubstituted C ₆ to C ₆₀ aryl group; A substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group; And an amine group substituted or unsubstituted with a C ₁ to C ₂₀ alkyl group, a substituted or unsubstituted C ₆ to C ₆₀ aryl group, or a substituted or unsubstituted C ₂ to C ₆₀ heteroaryl group &Lt; / RTI &gt; The method of claim 1,

X3 and X4 are substituted or unsubstituted C ₆ to C ₆₀ aromatic hydrocarbon rings; Or a substituted or unsubstituted C ₂ to C ₆₀ aromatic heterocycle. The method of claim 5,

Is a heterocyclic compound represented by any one of the following structural formulas:

In the above structural formulas, Z ₁ to Z ₃ are the same or different from each other and are each independently S or O,
Z ₄ to Z ₁₀ are the same or different and are each independently CR 'R ", NR', S or O,
Is aryl or a substituted or unsubstituted C ₆ to C ₆₀ ring; R 'and R "are the same or different and each is independently of the others hydrogen; substituted or unsubstituted C ₁ to C ₆₀ alkyl. The heterocyclic compound according to claim 1, wherein the formula 1 is represented by any one of the following compounds:

1. An organic light emitting device comprising a cathode, an anode, and at least one organic layer provided between the anode and the cathode, wherein at least one of the organic layers includes a heterocyclic compound according to any one of claims 1 to 7. 9. The organic electroluminescent device according to claim 8, wherein the organic material layer includes at least one of a hole blocking layer, an electron injecting layer and an electron transporting layer, and at least one of the hole blocking layer, the electron injecting layer and the electron transporting layer includes the heterocyclic compound Wherein the organic light-emitting device comprises: [Claim 9] The organic light emitting device according to claim 8, wherein the organic layer includes a light emitting layer, and the light emitting layer comprises the heterocyclic compound. The organic electroluminescent device according to claim 8, wherein the organic material layer includes at least one of a hole injection layer, a hole transport layer, and a layer simultaneously injecting holes and transporting holes, wherein one of the layers includes the heterocyclic compound .

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